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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkImageMagnify
* @brief magnify an image by an integer value
*
* vtkImageMagnify maps each pixel of the input onto a nxmx... region
* of the output. Location (0,0,...) remains in the same place. The
* magnification occurs via pixel replication, or if Interpolate is on,
* by bilinear interpolation. Initially, interpolation is off and magnification
* factors are set to 1 in all directions.
*/
#ifndef vtkImageMagnify_h
#define vtkImageMagnify_h
#include "vtkImagingCoreModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class VTKIMAGINGCORE_EXPORT vtkImageMagnify : public vtkThreadedImageAlgorithm
{
public:
static vtkImageMagnify* New();
vtkTypeMacro(vtkImageMagnify, vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Set/Get the integer magnification factors in the i-j-k directions.
* Initially, factors are set to 1 in all directions.
*/
vtkSetVector3Macro(MagnificationFactors, int);
vtkGetVector3Macro(MagnificationFactors, int);
///@}
///@{
/**
* Turn interpolation on and off (pixel replication is used when off).
* Initially, interpolation is off.
*/
vtkSetMacro(Interpolate, vtkTypeBool);
vtkGetMacro(Interpolate, vtkTypeBool);
vtkBooleanMacro(Interpolate, vtkTypeBool);
///@}
protected:
vtkImageMagnify();
~vtkImageMagnify() override = default;
int MagnificationFactors[3];
vtkTypeBool Interpolate;
int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
void ThreadedRequestData(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector, vtkImageData*** inData, vtkImageData** outData,
int outExt[6], int id) override;
void InternalRequestUpdateExtent(int* inExt, int* outExt);
private:
vtkImageMagnify(const vtkImageMagnify&) = delete;
void operator=(const vtkImageMagnify&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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